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Diffstat (limited to 'include/nlm/external.h')
| -rw-r--r-- | include/nlm/external.h | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/include/nlm/external.h b/include/nlm/external.h new file mode 100644 index 0000000..6e565e4 --- /dev/null +++ b/include/nlm/external.h @@ -0,0 +1,259 @@ +/* NLM (NetWare Loadable Module) support for BFD. + Copyright (C) 1993 Free Software Foundation, Inc. + + Written by Fred Fish @ Cygnus Support + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +/* This file is part of NLM support for BFD, and contains the portions + that describe how NLM is represented externally by the BFD library. + I.E. it describes the in-file representation of NLM. It requires + the nlm/common.h file which contains the portions that are common to + both the internal and external representations. + + Note that an NLM header consists of three parts: + + (1) A fixed length header that has specific fields of known length, + at specific offsets in the file. + + (2) A variable length header that has specific fields in a specific + order, but some fields may be variable length. + + (3) A auxiliary header that has various optional fields in no specific + order. There is no way to identify the end of the auxiliary headers + except by finding a header without a recognized 'stamp'. +*/ + +#define TARGET_LONG_SIZE 4 +#define TARGET_ADDRESS_SIZE 4 + +/* NLM Header (32-bit implementations) */ + +typedef struct nlm32_external_fixed_header +{ + + /* The signature field identifies the file as an NLM. It must contain + the string defined by NLM_SIGNATURE. */ + + unsigned char signature[NLM_SIGNATURE_SIZE]; + + /* The version of the header. At this time, the highest version number + is 4. */ + + unsigned char version[TARGET_LONG_SIZE]; + + /* The name of the module, which must be a DOS name (1-8 characters followed + by a period and a 1-3 character extension). The first byte is the byte + length of the name and the last byte is a null terminator byte. This + field is fixed length, and any unused bytes should be null bytes. The + value is set by the OUTPUT keyword to NLMLINK. */ + + unsigned char moduleName[NLM_MODULE_NAME_SIZE]; + + /* The byte offset of the code image from the start of the file. */ + + unsigned char codeImageOffset[TARGET_LONG_SIZE]; + + /* The size of the code image, in bytes. */ + + unsigned char codeImageSize[TARGET_LONG_SIZE]; + + /* The byte offset of the data image from the start of the file. */ + + unsigned char dataImageOffset[TARGET_LONG_SIZE]; + + /* The size of the data image, in bytes. */ + + unsigned char dataImageSize[TARGET_LONG_SIZE]; + + /* The size of the uninitialized data region that the loader is to be + allocated at load time. Uninitialized data follows the initialized + data in the NLM address space. */ + + unsigned char uninitializedDataSize[TARGET_LONG_SIZE]; + + /* The byte offset of the custom data from the start of the file. The + custom data is set by the CUSTOM keyword to NLMLINK. It is possible + for this to be EOF if there is no custom data. */ + + unsigned char customDataOffset[TARGET_LONG_SIZE]; + + /* The size of the custom data, in bytes. */ + + unsigned char customDataSize[TARGET_LONG_SIZE]; + + /* The byte offset of the module dependencies from the start of the file. + The module dependencies are determined by the MODULE keyword in + NLMLINK. */ + + unsigned char moduleDependencyOffset[TARGET_LONG_SIZE]; + + /* The number of module dependencies at the moduleDependencyOffset. */ + + unsigned char numberOfModuleDependencies[TARGET_LONG_SIZE]; + + /* The byte offset of the relocation fixup data from the start of the file */ + + unsigned char relocationFixupOffset[TARGET_LONG_SIZE]; + + unsigned char numberOfRelocationFixups[TARGET_LONG_SIZE]; + + unsigned char externalReferencesOffset[TARGET_LONG_SIZE]; + + unsigned char numberOfExternalReferences[TARGET_LONG_SIZE]; + + unsigned char publicsOffset[TARGET_LONG_SIZE]; + + unsigned char numberOfPublics[TARGET_LONG_SIZE]; + + /* The byte offset of the internal debug info from the start of the file. + It is possible for this to be EOF if there is no debug info. */ + + unsigned char debugInfoOffset[TARGET_LONG_SIZE]; + + unsigned char numberOfDebugRecords[TARGET_LONG_SIZE]; + + unsigned char codeStartOffset[TARGET_LONG_SIZE]; + + unsigned char exitProcedureOffset[TARGET_LONG_SIZE]; + + unsigned char checkUnloadProcedureOffset[TARGET_LONG_SIZE]; + + unsigned char moduleType[TARGET_LONG_SIZE]; + + unsigned char flags[TARGET_LONG_SIZE]; + +} Nlm32_External_Fixed_Header; + +/* The version header is one of the optional auxiliary headers and + follows the fixed length and variable length NLM headers. */ + +typedef struct nlm32_external_version_header +{ + + /* The header is recognized by "VeRsIoN#" in the stamp field. */ + char stamp[8]; + + unsigned char majorVersion[TARGET_LONG_SIZE]; + + unsigned char minorVersion[TARGET_LONG_SIZE]; + + unsigned char revision[TARGET_LONG_SIZE]; + + unsigned char year[TARGET_LONG_SIZE]; + + unsigned char month[TARGET_LONG_SIZE]; + + unsigned char day[TARGET_LONG_SIZE]; + +} Nlm32_External_Version_Header; + + +typedef struct nlm32_external_copyright_header +{ + + /* The header is recognized by "CoPyRiGhT=" in the stamp field. */ + + char stamp[10]; + + unsigned char copyrightMessageLength[1]; + + /* There is a variable length field here called 'copyrightMessage' + that is the length specified by copyrightMessageLength. */ + +} Nlm32_External_Copyright_Header; + + +typedef struct nlm32_external_extended_header +{ + + /* The header is recognized by "MeSsAgEs" in the stamp field. */ + + char stamp[8]; + + unsigned char languageID[TARGET_LONG_SIZE]; + + unsigned char messageFileOffset[TARGET_LONG_SIZE]; + + unsigned char messageFileLength[TARGET_LONG_SIZE]; + + unsigned char messageCount[TARGET_LONG_SIZE]; + + unsigned char helpFileOffset[TARGET_LONG_SIZE]; + + unsigned char helpFileLength[TARGET_LONG_SIZE]; + + unsigned char RPCDataOffset[TARGET_LONG_SIZE]; + + unsigned char RPCDataLength[TARGET_LONG_SIZE]; + + unsigned char sharedCodeOffset[TARGET_LONG_SIZE]; + + unsigned char sharedCodeLength[TARGET_LONG_SIZE]; + + unsigned char sharedDataOffset[TARGET_LONG_SIZE]; + + unsigned char sharedDataLength[TARGET_LONG_SIZE]; + + unsigned char sharedRelocationFixupOffset[TARGET_LONG_SIZE]; + + unsigned char sharedRelocationFixupCount[TARGET_LONG_SIZE]; + + unsigned char sharedExternalReferenceOffset[TARGET_LONG_SIZE]; + + unsigned char sharedExternalReferenceCount[TARGET_LONG_SIZE]; + + unsigned char sharedPublicsOffset[TARGET_LONG_SIZE]; + + unsigned char sharedPublicsCount[TARGET_LONG_SIZE]; + + unsigned char sharedInitializationOffset[TARGET_ADDRESS_SIZE]; + + unsigned char SharedExitProcedureOffset[TARGET_ADDRESS_SIZE]; + + unsigned char productID[TARGET_LONG_SIZE]; + + unsigned char reserved0[TARGET_LONG_SIZE]; + + unsigned char reserved1[TARGET_LONG_SIZE]; + + unsigned char reserved2[TARGET_LONG_SIZE]; + + unsigned char reserved3[TARGET_LONG_SIZE]; + + unsigned char reserved4[TARGET_LONG_SIZE]; + + unsigned char reserved5[TARGET_LONG_SIZE]; + +} Nlm32_External_Extended_Header; + + +typedef struct nlm32_external_custom_header +{ + + /* The header is recognized by "CuStHeAd" in the stamp field. */ + char stamp[8]; + + unsigned char dataLength[TARGET_LONG_SIZE]; + + unsigned char debugRecOffset[TARGET_LONG_SIZE]; + + unsigned char debugRecLength[TARGET_LONG_SIZE]; + +} Nlm32_External_Custom_Header; + |